🔢

Number Base Converter

Convert between Binary, Octal, Decimal, and Hexadecimal in real-time. Edit any field to update all others.

🟦 Decimal (Base 10)

Digits: 0–9

🟪 Hexadecimal (Base 16)

Digits: 0–9, A–F

🟩 Binary (Base 2)

Digits: 0, 1

🟧 Octal (Base 8)

Digits: 0–7

Bit Visualization (8-bit / 32-bit)

Common Values Reference

${[ ['0', 'Zero'], ['1', 'One'], ['8', 'Byte range start (1 byte has 8 bits)'], ['16', '0x10'], ['32', '0x20'], ['64', '0x40'], ['128', '0x80'], ['255', '0xFF — max uint8'], ['256', '2^8'], ['1024', '1 KB'], ['65535', '0xFFFF — max uint16'], ['16777215', '0xFFFFFF — max color'], ].map(([n, desc]) => `

${n}

${desc}

`).join('')}